Well, the Hijri date 27 Shawwal 1177 corresponds to the Gregorian date Saturday, 28 April 1764. This date lies in the tenth month of the Hijri year 1177 AH, which is Shawwal of 1177 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1177/10/27 is calculated using the Umm Al-Qura calendar and the sighting of the moon. One thing to remember is that this Arabic date may occur on different Gregorian date depending upon the region and country and obviously the moon.
If you are still not sure about the date then you can use our Arabic date converter.
The following is the conversion of the Gregorian date 28 April 1764 to its equivalent Arabic date.
The following is the conversion of the Arabic date 27 Shawwal 1177 AH to its equivalent Gregorian date.
إِنَّ ٱلَّذِينَ لَا يُؤْمِنُونَ بِٱلْءَاخِرَةِ زَيَّنَّا لَهُمْ أَعْمَٰلَهُمْ فَهُمْ يَعْمَهُونَ
Lo! as for those who believe not in the Hereafter, We have made their works fairseeming unto them so that they are all astray.
Surah An-Naml(27:4)